* {
  font-size: 14px;
}

html::-webkit-scrollbar {
  width: 0;
  background: 0 0;
}
body{
  background-color: rgba(#000, 0.05);
}
.flex-box(@flex-direction,@justify-content:center,@align-items:center,@flex-wrap:nowrap) {
  display: flex;
  flex-direction: @flex-direction;
  justify-content: @justify-content;
  align-items: @align-items;
  flex-wrap: @flex-wrap;
}

.wh(@width,@height:@width) {
  width: @width;
  height: @height;
}
